How can I get naturalization number if I lost it?

You should contact USCIS for a copy. There is a charge but, at least you will have it.

My L1B Visa expires on Oct-2018, Can my family(L2) travel to USA after Oct-2018 with their stamped visa(Oct-2020)

You should contact an attorney to inquire about this important situation.

Can i apply for the citizenship ,

You can find all the eligibility requirements on the USCIS website.

Can I apply for a green card being n RN with DACA-perhaps by sponsoring hospital?

That could be possible. You should contact an attorney to discuss your options.

How can I get status information- I put in receipt number to USCIS website but it says it hasbeen sent to Dept of State in 2009?

If your case has been sent to the Department of State, you have to check the NVC system.

You can apply for DACA while your AOS is still pending.

US Citizenship Form N-400, 3 month residency in district?

The residency requirement is for the state, not the city.

You should contact an attorney as soon as possible.

I married a lady from Ghana and i live in California we used a attorney and a preacher there but have not met is this legal? ?

You two got married without having met? Is that allowed in Ghana?Did she get a visa through you? Only a few questions that you should give the...

What are the options? Error in new I-94 validity

You should contact USCIS to inform them of the mistake.